13215132 has 54 divisors (see below), whose sum is σ = 38344488. Its totient is φ = 3759264.

The previous prime is 13215121. The next prime is 13215151. The reversal of 13215132 is 23151231.

13215132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 57594 + ... + 57822.

Almost surely, 2^13215132 is an apocalyptic number.

13215132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13215132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19172244).

13215132 is an abundant number, since it is smaller than the sum of its proper divisors (25129356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13215132 is a wasteful number, since it uses less digits than its factorization.

13215132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 241 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 13215132 is about 3635.2623014027. The cubic root of 13215132 is about 236.4234235167.

Adding to 13215132 its reverse (23151231), we get a palindrome (36366363).

The spelling of 13215132 in words is "thirteen million, two hundred fifteen thousand, one hundred thirty-two".